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Finding the Fourth Proportional to 6,641.15, 9,963.43 and 1,960.97

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Solution

The fourth proportional to 6,641.15, 9,963.43 and 1,960.97 is: 2,941.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.15 : 9,963.43 = 1,960.97 : x
  2. Step 2: Convert to fraction form
    6,641.15/9,963.43 = 1,960.97/x
  3. Step 3: Cross multiply
    6,641.15x = 9,963.43 × 1,960.97
  4. Step 4: Simplify right side
    6,641.15x = 19,537,932.61
  5. Step 5: Solve for x
    x = 19,537,932.61/6,641.15
  6. Step 6: Final answer
    x = 2,941.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.